Twelve miles away from Curiosity, you can make out the peaks of Mout Sharp. The folks from the Jet Propulsion Lab give some context:

The images were obtained by the rover's 34-millimeter Mast Camera. The mosaic, which stretches about 29,000 pixels across by 7,000 pixels high, includes 130 images taken on Aug. 8 and an additional 10 images taken on Aug. 19. These images were shot before the camera was fully characterized. Scientists enhanced the color in one version to show the Martian scene as it would appear under the lighting conditions we have on Earth, which helps in analyzing the terrain.